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Makovka662 [10]
3 years ago
7

The probability that a person catches a cold during the cold and flu season is 0.4. assume that 10 people are chosen at random.

what is the probability that exactly four of them will catch a cold
Mathematics
1 answer:
Oksana_A [137]3 years ago
7 0
From the information given;
P(cold) = 0.4
P(no cold) = 1-0.4 = 0.6

The number of ways of selecting 4 from 10 = 10C4 = 210

Probability that the 4 selected with catch a cold:

P(4 will catch cold) = (10C4)*P(cold)^4*P(no cold)^6 =  210*0.4^4*0.6^6 = 0.2508

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Write the slope intercept form that satisfies the following conditions
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y = 3x - 13

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2 years ago
Which function has a constant additive rate of change of 14
Maurinko [17]

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From the figure:

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6 0
1 year ago
X=-y+3 <br> 3y+x=5 pleaasseee heellppp meee
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3y+(-y+3)=5
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6 0
3 years ago
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a circle with radious of 1cm sits inside a 11cm times 12 cm rectangle what is the area of the shaded region
Nitella [24]

Answer: 128.86cm²

Step-by-step explanation:

The circle is inscribed in the rectangle. To find the shaded portion, subtract he area of the circle from the are of the rectangle.

Area of the rectangle                                  =  11 x 12

                                                                     =  132cm²

Area of the circle with radius of 1cm          =  πr²

                                                                     = 3.142 x 1²

                                                                     = 3.142cm²

Therefore , area of the shaded  region      = 132cm²  -  3.142cm²

                                                                    = 128.86cm²

7 0
3 years ago
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